WO2007091551A1

WO2007091551A1 - Process for producing crosslinkable resin molding

Info

Publication number: WO2007091551A1
Application number: PCT/JP2007/052013
Authority: WO
Inventors: Tomoyoshi Ohtaki; Kazuyuki Onishi; Narumi Suzuki; Kiyoshige Kojima; Junji Kodemura
Original assignee: Zeon Corporation
Priority date: 2006-02-06
Filing date: 2007-02-06
Publication date: 2007-08-16
Also published as: US20090305018A1; KR20080098647A; KR20080100443A; JPWO2007091550A1; EP1990364A4; EP1990364A1; JP5347268B2; JPWO2007091551A1; EP2017304A4; EP2017304A1; WO2007091550A1; US20100124615A1

Abstract

A process for producing a crosslinkable resin molding which comprises heating to 50°C or higher a polymerizable composition comprising a cycloolefinic monomer, a metathesis polymerization catalyst, a chain-transfer agent, and a crosslinking agent to thereby cause the monomer to undergo ring-opening metathesis bulk polymerization, wherein the polymerizable composition before the heating is regulated to have a temperature of from -10°C to +20°C. By the process, a crosslinkable resin molding can be efficiently produced which has excellent melt flowability upon heating and which, even when laminated to a substrate, causes no inner voids (thin spots) and does not impair flatness.

Description

Specification

Method for producing crosslinkable resin molded article

Technical field

[0001] The present invention relates to a method for efficiently producing a crosslinkable resin molded article having excellent fluidity during heat melting.

Background art

[0002] Cyclic olefin fin resins obtained by polymerizing cyclic olefin monomers are excellent in mechanical properties, impact resistance, weather resistance, insulation properties, etc., and thus are being put to practical use for molded articles in a wide range of fields. . Particularly in recent years, it has attracted attention as a material for forming an insulating layer of a wiring board, which requires high electrical connection reliability and excellent high frequency characteristics.

[0003] For example, Patent Document 1 discloses a norbornene-based resin composition in which a thermoplastic hydrogenated ring-opening norbornene-based resin, an organic peroxide compound, and a crosslinking aid are uniformly dispersed at a specific ratio. A cross-linked molded product is described which is formed into a rumya pre-preda and laminated with a base material, followed by cross-linking and heat-sealing by heat and pressure molding.

[0004] However, in the method described in this document, a thermoplastic norbornene-based resin composition solution is applied onto a substrate to obtain a sheet, and then the sheet is peeled off from the substrate. In addition, it is hot-pressed by overlapping with copper foil or the like. For this reason, the number of processes is large and complicated, which is not necessarily advantageous for manufacturing on an industrial production scale. In addition, there are problems that the copper foil peels off due to the residual solvent, or gas is generated to cause blistering.

Patent Document 2 to solve this problem includes post-crosslinking characterized by bulk polymerization of a polymerizable composition (A) containing a norbornene-based monomer, a metathesis polymerization catalyst, a chain transfer agent, and a crosslinking agent. A method for producing a possible thermoplastic resin and a method for laminating the thermoplastic resin with a metal foil or the like as necessary and crosslinking the thermoplastic resin are proposed. According to this method, it is possible to produce a thermoplastic resin that can be post-crosslinked while the copper foil is not peeled off by a residual solvent that is simple and efficient, or gas is generated and spillage occurs. .

[0006] In Patent Document 3, it is delayed to prepare a polymerizable composition by mixing a cyclic olefin monomer and a metathesis polymerization catalyst, and to apply or impregnate the polymerizable composition on a support. It is described that it is possible to efficiently produce a cyclic olefin-based resin film having excellent adhesion by performing the polymerization without delay and heating the support to a predetermined temperature to bulk polymerize the polymerizable composition. Yes.

[0007] In the case of manufacturing a wiring board by laminating the annular olefin resin film described in Patent Documents 2 and 3 with a substrate having a wiring pattern formed on the surface, while applying force! In some cases, the adhesion of the cyclic polyolefin resin film to the substrate was insufficient, resulting in voids or loss of flatness.

Patent Document 1: Japanese Patent Laid-Open No. 6-248164

Patent Document 2: Japanese Patent Application Laid-Open No. 2004-244609 (Pamphlet No. WO2004Z003052) Patent Document 3: Pamphlet of WO2004Z069895

Disclosure of the invention

Problems to be solved by the invention

[0009] The present invention has been made in view of such circumstances, is excellent in fluidity at the time of heating and melting, and even when laminated with a substrate, voids (scratch) are generated inside, It is an object of the present invention to provide a method for efficiently producing a cross-linkable resin molded product that does not impair flatness.

Means for solving the problem

[0010] The inventors of the present invention are earnest about a cyclic olefin fin resin obtained by bulk ring-opening metathesis polymerization of a cyclic olefin-based monomer that solves the above-mentioned problems, and a crosslinkable resin composition containing a crosslinking agent. Studied. As a result, the resin obtained by the conventional method has a wide molecular weight distribution and low fluidity when heated and melted, so that the adhesion to the substrate and the pattern embedding are insufficient. When the molecular weight distribution (MwZMn) of the included cyclic olefin fin resin is small, it has excellent fluidity when heated and melted, and even when laminated with a substrate, voids are formed inside it and flatness is impaired. I found out

[0011] Further, as a result of further earnest studies on a method for efficiently producing a crosslinkable resin molded article having such characteristics, polymerization including a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent, and a crosslinking agent is performed. When bulk polymerizing the composition! Hurry, heavy before heating It has been found that by setting the temperature of the compatible composition to −10 ° C. to + 20 ° C., a crosslinkable resin molded product having the above-described characteristics can be efficiently produced, and the present invention is completed. It came to.

[0012] Forcibly, according to the present invention, there is provided a method for producing a crosslinkable resin molded article according to the following (1) to (10).

(1) A polymerizable composition containing a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent, and a crosslinking agent is heated to 50 ° C. or higher to effect bulk ring-opening metathesis polymerization to obtain a crosslinkable resin molded article. A method for producing a crosslinkable resin molded article, characterized in that the temperature of the polymerizable composition before heating is 10 ° C to + 20 ° C.

(2) The production method according to (1), wherein the polymerizable composition is heated to 80 ° C. to 200 ° C. to perform bulk ring-opening metathesis polymerization.

(3) The manufacturing method according to (1) or (2), wherein the heating is performed using a heating roll, a heating plate, or a heating furnace.

[0013] (4) The heating is performed using a hot air calorie temperature device in which a temperature difference between the internal maximum temperature and the minimum temperature is within 10 ° C. (1) or (2) Manufacturing method.

(5) A step of preparing a polymerizable composition by mixing a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent and a crosslinking agent (I), a step of applying or impregnating the polymerizable composition to a support (Ii) and a method of producing a crosslinkable resin molded article having a step (III) of mass-ring-opening metathesis polymerization by heating the polymerizable composition to 50 ° C. or more, and polymerization before heating A method for producing a crosslinkable resin molded article, wherein the temperature of the adhesive composition is −10 ° C. to + 20 ° C.

(6) A long support is used as the support, and the steps (I) to (III) are continuously performed while transporting the support in a certain direction. The manufacturing method as described.

(7) The production method according to (5) or (6), wherein a resin film, a fiber material, or a metal foil is used as the support.

(8) The step (III) is performed using a hot air heating device in which the temperature difference between the internal maximum temperature and the minimum temperature is within 10 ° C. (5) to (7) The manufacturing method according to any of the above.

(9) As the cyclic olefin-based monomer, a cyclic olefin-based monomer containing an aromatic ring The method according to any one of (1) to (8), wherein one is used.

(10) The production method according to any one of (1) to (9), wherein a ruthenium complex catalyst having a heteroatom-containing carbene compound as a ligand is used as the metathesis polymerization catalyst. The invention's effect

[0015] According to the present invention, the crosslinkable resin having excellent fluidity at the time of heating and melting and does not cause voids or damage to flatness even when laminated with a substrate. A method for efficiently producing a molded body is provided.

Brief Description of Drawings

FIG. 1 is a schematic view of a continuous molding apparatus for a laminated film of a sheet-like crosslinkable resin molded body (crosslinkable resin sheet) used in Examples 1 to 6 and a support film.

[FIG. 2] Although not a diagram for explaining the present invention, it is an upper plan view of a pattern of an IPC multipurpose substrate used in Examples.

FIG. 3 is not a diagram for explaining the present invention, but a diagram showing a method for evaluating flatness and embedding using an IPC substrate.

Explanation of symbols

[0017] 11: Monomer liquid tank, 12 ... Catalyst liquid tank, 3, 4 ... Small tube pump, 15 ... Static mixer, 16a, 16b ... Coating part, 17 ... Supporting part feeding part, 18 ... ··· Support (glass cloth), 19a, 19b… Protective film feeding part, 20 ··· Protective film (polyethylene naphtharate film), 21a, 21b · Metal roll, 22 · "Air curtain, 23 ·· Hot air Caro warming device (floating dryer), 24… Crosslinkable resin sheet (fat sheet), 25 · “film take-up part”

BEST MODE FOR CARRYING OUT THE INVENTION

[0018] Hereinafter, the method for producing a crosslinkable resin molded article of the present invention will be described in detail.

The method for producing a crosslinkable resin molded article of the present invention comprises (1) a cyclic olefin-based monomer, (2) a metathesis polymerization catalyst, (3) a chain transfer agent, and (4) a polymerizable composition containing a crosslinking agent. (Hereinafter referred to as “polymerizable composition (A)”) is heated to 50 ° C. or higher to produce a mass-opened metathesis polymer to produce a crosslinkable resinous molded product, which is obtained before the heating. Polymerizable composition of The temperature of the object (A) is -10 ° C to + 20 ° C.

[0019] (1) Cyclic olefin-based monomer

The cyclic olefin-based monomer used in the present invention is a compound having a cyclic structure and a ring-opening polymerizable carbon-carbon double bond. Here, examples of the cyclic structure include an aromatic ring structure, a cycloalkane structure, and a cycloalkene structure.

[0020] Specific examples of the cyclic olefin-based monomer used in the present invention include a monocyclic olefin monomer and a norbornene-based monomer.

[0021] Further, these cyclic olefin-based monomers include polar groups such as hydrocarbon groups such as alkyl groups, alkyl groups, alkylidene groups, and aryl groups, carboxyl groups, alkoxycarbonyl groups, hydroxyl groups, and alkoxyl groups. May be substituted by a group.

[0022] Examples of monocyclic cyclic olefin monomers include cyclic monoolefins and cyclic diolefins having 4 to 20 carbon atoms, preferably 4 to 10 carbon atoms.

[0023] Specific examples of the monocyclic monoolefin include cyclobutene, cyclopentene, methyl cyclopentene, cyclohexene, methylcyclohexene, cycloheptene, cyclooctene, and the like. Specific examples of cyclic diolefins include cyclohexagen, methyl cyclohexagen, cyclotactene, methyl cyclotactene, phenyl cyclotactene and the like.

[0024] The norbornene-based monomer is a monomer having a norbornene ring structure in the molecule. Norbornene monomers include (a) norbornene monomers having no unsaturated bond other than the carbon-carbon unsaturated bond involved in the polymerization reaction, such as norbornene, tetracyclododecene, and alkyl-substituted products thereof (b) ) Norbornene monomer having an unsaturated bond other than a carbon-carbon unsaturated bond involved in the polymerization reaction, such as ethylidene norbornene, burnorbornene, ethylidenetetracyclododecene, dicyclopentagen, etc. (C) norbornene monomers having a polar group such as methoxycarbonyl norbornene, methoxycarbonyltetracyclododecene, and (d) monomers of norbornene monomers having an aromatic ring.

[0025] These cyclic olefin-based monomers can be used alone or in combination of two or more. When two or more types of monomers are used in combination, the glass transition temperature and melting temperature of the resulting resin can be controlled by changing the mixing ratio.

Among these, in the present invention, a norbornene-based monomer is preferable from the viewpoint of obtaining a cyclic olefin fin resin excellent in mechanical properties, impact resistance, weather resistance, insulating properties and the like, as will be described later.

[0027] Among norbornene-based resins, the norbornene-based monomer having an aromatic ring (d) is more preferable from the viewpoint of obtaining a cyclic olefin fin resin having a small molecular weight distribution and excellent fluidity during heating and melting. Condensation between an aliphatic ring having one or more carbon-carbon double bonds (hereinafter referred to as “unsaturated aliphatic ring”) and an aromatic ring (hereinafter referred to as “aromatic ring”) in a preferred molecule A norbornene-based monomer having a ring (hereinafter referred to as “aromatic condensed ring-containing cyclic olefin” t) is particularly preferred.

[0028] Here, the fused ring refers to a ring in which an unsaturated aliphatic ring and an aromatic ring are ortho-fused or ortho-peri-fused. These rings share one bond with two atoms.

[0029] Examples of the unsaturated aliphatic ring include monocycles; bicycles, tricycles, and polycycles of four or more rings; and aromatic rings may be carbon-fused rings or hetero-fused rings. May be monocyclic or polycyclic. As aromatic rings, benzene rings; carbon condensed rings such as naphthalene rings, anthracene rings, phenanthrene rings; pyridine rings, pyrimidine rings, furan rings, thiophene rings, imidazole rings, pyrrole rings, oxazole rings, pyrazine rings, benzimidazole rings, etc. A hetero-fused ring.

[0030] Of these, hydrocarbon aromatic rings such as benzene ring and naphthalene ring and furan ring are preferred because they do not inhibit the metathesis polymerization reaction.

[0031] Aromatic condensed ring-containing cyclic olefins having monocyclic unsaturated aliphatic rings include bicyclo [4.2.0] octa-1,3,5,7-teraene, bicyclo [4] . 4.0] Deca 1, 3, 5,

Examples include 8-tetraene and bicyclo [6.4.0] dode force 1 (8), 4, 9, 11-tetraene.

[0032] Aromatic condensed ring-containing cyclic olefins having bicyclic unsaturated aliphatic rings include tricyclo [6. 2. 1. 0 ² ' ⁷ ] unde force — 2, 4, 6, 9-tetraene. Tetracyclo [6. 6. 2. 0 ² ' ⁷ . 0 ⁹ ^'14] to Kisade force - 2, 4, 6, 9 (10), 11, 13, 15-heptaene, tetracyclo [10. 2.1.2 0 ^2'. ¹¹ 0 ⁴ ^'9] Pentadeka 2, 4 , 6, 8, 10, 13 Hexacene.

[0033] Examples of the aromatic condensed ring-containing cyclic Orefin having an unsaturated aliphatic ring tricyclic, Tet Rashikuro [9.2.2 1.0 ² ^'10.0 ^3' ^8] tetradec one 3, 5, 7 , 12- Tetoraen (1, 4 methanol 1, 4, 4a, 9a- tetrahydro referred to as one 9H-fluorene), tetracyclo [10. 2.1.2 0 ² ^'11 0 ^4.' ^9] Pentade force - 4, 6, 8, 13-te Bok Raen (1, 4-methano - 1, 4, 4a, 9, 9a, also referred to as hexa hydro anthracene to 10), tetracyclo [10. 2.1.2 0 ² '. ¹¹ 0 ^3' ^8] Pentade force one 3, 5, 7, 13-Tetoraen, cyclopentadiene over § Senna border Ren with mosquito卩物, pentacyclo [13. 2. 1.0 ² ^'14.0 ^3' ^12.0 ⁵ ^'10 ] Okutadeka -. 3, 5, 7, 9, 11, 16 to Kisaen, pen Tashikuro [13. 2.1.2 0 ² '. ¹⁴ 0 ^3' ¹² 0 ⁴ ^'9] Okutadeka one 3, 5, 7, 9 , 11, 16 to Kisae down, pentacyclo [13. 2. 1.0 ² ^'14.0 ^3' ^12.0 ⁶ ^'11] Okutadeka one 3, 5, 7, 9, 11, 16— Hexacene.

[0034] Examples of the aromatic condensed ring-containing cyclic Orefin having tetracyclic or more unsaturated aliphatic ring, to Kisashikuro ^{^{[13. 2. 1. I 3 '13}} . 0 2' 14. 0 4 '12. 0 ⁵ ^'10] Nonade force one 5, 7, 9, 16-tetramethyl E down, Okutashikuro ^{^{[17. 2. 1. I 3' 17}} . I 5 '15. 0 2' 18. 0 4 '16. 0 5' . ¹⁴ 0 ⁷ ^'12] Tetoraeikosa - 7, 9, 11, 20 Tetoraen and the like.

[0035] (2) Metathesis polymerization catalyst

The metathesis polymerization catalyst used in the present invention is not particularly limited as long as it can cause a cyclic olefin-based monomer to undergo metathesis ring-opening polymerization. For example, a ring-opening metathesis reaction catalyst described in Olefin Metathesis and Metathesis Polymerization (K. J. Ivm and J. C. Mol, Academic Press. ¾ an Diego 1997) can be used.

[0036] The metathesis polymerization catalyst to be used is preferably a complex formed by bonding a plurality of ions, atoms, polyatomic ions and Z or a compound with a transition metal atom as a central atom. As transition metal atoms, atoms of Groups 5, 6, and 8 (long-period periodic table, the same applies below) are used. The atoms of each group are not particularly limited. Examples of the Group 5 atom include tantalum. Examples of the Group 6 atom include molybdenum and tungsten. Examples of the Group 8 atom include ruthenium and osmium. Is mentioned.

[0037] Among these, group 8 ruthenium and osmium complexes are used as metathesis polymerization catalysts. Particularly preferred is a ruthenium carbene complex. The ruthenium carbene complex has excellent catalytic activity during bulk polymerization, and thus has excellent productivity of a resin film. In addition, it is relatively stable to oxygen and moisture in the air and is not easily deactivated, so it can be produced even in the atmosphere.

The ruthenium carbene complex is represented by the following formula (1) or (2).

[0038] [Chemical 1]

[0039] In the formulas (1) and (2),

R ² each independently represents a hydrogen atom, a halogen atom, or a C to C hydrocarbon group that may contain a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom, or a silicon atom, and at least one of them Is a heteroatom-containing cal

1 20

A ben compound is preferable. X ¹ and X ² each independently represent an arbitrary ionic ligand.

L ² each independently represents a heteroatom-containing carbene compound or a neutral electron donating compound. Also,

R ² , X ¹ , X ² , L ¹ and L ² may be bonded together in any combination to form a multidentate chelating ligand.

[0040]

X ² is a ligand having a negative charge when pulled away from the central metal, for example, a halogen atom such as F, Cl, Br, I, a diketonate group, a substituted cyclopentagel group, an alkoxy group. And an aryloxy group, a carboxyl group, and the like. Among these, a chlorine atom that is preferably a halogen atom is more preferable.

[0041] Specific examples of heteroatoms include N, 0, P, S, As, and Se atoms.

Among these, from the viewpoint of obtaining a stable carbene compound, N atoms, particularly preferred are N, 0, P, S atoms and the like.

[0042] The heteroatom-containing carbene compound preferably has a heteroatom bonded on both sides of the carbene carbon, and further comprises a heterocycle containing a carbene carbon atom and a heteroatom on both sides. More preferred are those described above. Also adjacent to carbene carbon It is preferable that the telo atom is bulky and has a substituent.

[0043] Examples of the heteroatom-containing carbene compound include compounds represented by the following formula (3) or formula (4).

[0044] [Chemical 2]

(Wherein R ^{3 to} R ⁶ may each independently contain a hydrogen atom, a halogen atom, or a halogen atom, an oxygen atom, a nitrogen atom, a sulfur atom, a phosphorus atom or a silicon atom)

1 to C 20 hydrocarbon group is represented. R ^{3 to} R ⁶ may be bonded together in any combination to form a ring. )

Specific examples of the compounds represented by the formulas (3) and (4) include 1,3 dimesitylimidazolidine-2 ylidene, 1,3 di (1-adamantyl) imidazolidine-2 ylidene, 1 cyclohexyl lumine 3 mesityl. Imidazolidine 2 Iridene, 1, 3 Dimesitylocutahidrovebenzimidazole 2—Iridene, 1, 3 Diisopropyl— 4—Imidazoline— 2— Iridene, 1, 3 Di (1-Fuelethyl) — 4— Examples include imidazoline-2-ylidene, 1,3 dimesityl-2,3 dihydrobenzimidazole-2 ylidene, and the like.

In addition to the compounds represented by the above formulas (3) and (4), 1, 3, 4 triphenyl 2, 3, 4, 5—tetrahydro 1H— 1, 2, 4 triazonole 5 iriden 1,3-dicyclohexylhexahydropyrimidine 1-ylidene, N, N, Ν ', Ν, 1-tetraisopropylformamidinylidene, 1, 3, 4 triphenyl-1,4,5 dihydro-1H-1 Heteroatom-containing carbene compounds such as 2,4 triazol 1 lu 5 ylidene, 3- (2,6 diisopropylphenol) 1 2,3 dihydrothiazol-2-ylidene can also be used.

[0047] In addition, a neutral electron donating compound has a neutral charge when pulled away from the central metal. Any ligand may be used so long as it has Specific examples thereof include carbon, amines, pyridines, ethers, nitriles, esters, phosphines, thioethers, aromatic compounds, olefins, isocyanides, thiocyanates and the like. Among these, trialkylphosphine, which is preferable for phosphines, ethers and pyridines, is more preferable.

[0048] Examples of the ruthenium complex represented by the formula (1) include benzylidene (1, 3 dimesitylmimidazolidine 2-ylidene) (tricyclohexylphosphine) ruthenium dichloride, (1, 3 dimesitylimidazolidine) — 2-Iridene) (3-Methyl-2 Butene-1-Ilidene) (Tricyclopentylphosphine) Ruthenium dichloride, Benzylidene (1, 3 Dimesityl-octahydrobenzimidazole-2-Ilidene) (Tricyclohexylphosphine) Ruthenium Dichloride, benzylidene [1, 3 di (1 phe-ruethyl) -4 imidazoline —2-ylidene] (tricyclohexylphosphine) ruthenium dichloride, benzylidene (1, 3 dimesityl-2, 3 dihydrobenzimidazole-2 ylidene) (tricyclo) Hexylphosphine) ruthenium dic Lolide, benzylidene (tricyclohexylphosphine) (1, 3, 4 triphenyl 2, 2, 4, 4, 5-tetrahydro-1H—1, 2, 4 triazole-5 ylidene) ruthenium dichloride, (1, 3 diisopropylhexahydro Pyrimidine 1-ylidene) (ethoxymethylene) (tricyclohexylphosphine) ruthenium dichloride, benzylidene (1, 3 dimesitylimidazolidine 2 ylidene) pyridine ruthenium dichloride, (1, 3 dimethylimidazolidine-2 ylidene) ( 2-heterylidene) (tricyclohexylphosphine) ruthenium dichloride, (1,3 dimesityl-4-imidazoline-2-ylidene) (2-phenolethylidene) (tricyclohexylphosphine) ruthenium dichloride, heteroatoms -Containing carbene compounds and neutralization of electron donation Rute thing is bound - ©-time complex I 匕合 thereof;

[0049] Two neutral electron donating compounds such as benzylidenebis (tricyclohexylphosphine) ruthenium dichloride, (3-methyl-1-butene-1-ylidene) bis (tricyclopentylphosphine) ruthenium dichloride, etc. are combined. Ruthenium compounds;

Benzylidenebis (1,3 dicyclohexylimidazolidine-2-ylidene) ruthenium dichloride, benzylidenebis (1,3-diisopropyl-1-4-imidazoline-2-ylidene) A ruthenium complex compound in which two heteroatom-containing carbene compounds such as ruthenium dichloride are bonded.

[0050] Examples of the ruthenium complex represented by the formula (2) include (1, 3 dimesitymyl imidazoline-2-ylidene) (ferrobi-lidene) (tricyclohexylphosphine) ruthenium dichloride, (t -Butylbilidene) (1, 3 diisopropyl 4 imidazoline 2 ylidene) (tricyclopentylphosphine) ruthenium dichloride, bis (1, 3 dicyclohexyl) 4- imidazoline-2-ylidene) ferrobi-lidene ruthenium dichloride It is done.

[0051] These ruthenium complex catalysts are produced by the method described in, for example, Org. Lett., 1999, pp. 1, 953, Tetrahedron. Lett., 1999, pp. 40, 2247, etc. can do.

[0052] The amount of the metathesis polymerization catalyst used is the molar ratio of (metal atom in the catalyst: cyclic olefin).

Normal: 1: 2,000 to 1: 2,000, 000, preferred <is 1: 5,000 to 1: 1,000, 000, more preferred <is 1: 10,000 to 1: 500, 000 Range.

[0053] In the present invention, an activator (cocatalyst) can be used in combination with the metathesis polymerization catalyst for the purpose of controlling the polymerization activity of the metathesis polymerization catalyst or increasing the polymerization reaction rate.

[0054] Examples of the activator to be used include aluminum, scandium, tin, titanium or zirconium alkylates, halides, alkoxylates and aryloxylates.

[0055] Specific examples of the activator include trialkoxyaluminum, triphenoxyaluminum, dialkoxyalkylaluminum, alkoxydialkylaluminum, trialkylaluminum, dialkoxyaluminum chloride, alkoxyalkylaluminum chloride, dialkylaluminum chloride, trialkylaluminum. Examples include alkoxyscandium, tetraalkoxytitanium, tetraalkoxytin, and tetraalkoxyzirconium.

[0056] The amount of the activator used is usually in the molar ratio of (metal atom in the metathesis polymerization catalyst: activator): 1: 0.05 to 1: 100, preferably ί 1: 0.2 to 1 : 20, more preferably ί 1: 1: 0.5 to 1:10.

[0057] (3) Chain transfer agent In the present invention, a chain transfer agent is used as a constituent component of the polymerizable composition (A). The molecular weight of the obtained cyclic olefin fin resin can be adjusted by using a chain transfer agent.

[0058] The chain transfer agent to be used includes, for example, a chain-like olefin having a substituent! /. Specific examples of the chain transfer agent include: 1) aliphatic olefins such as hexene and 2-hexene; aromatic olefins such as styrene, dibutenebenzene and stilbene; and alicyclic olefins such as burcyclohexane. ; Echirubi - Bulle ethers such as ether; Mechirubi - ketone, 1, ₅ one to Kisajen _3-one, 2-methyl-1, 5 one to Kisajen 3-one or the like of bi - ketone compounds; formula (a): CH = CH Quantification represented by Q

2

Compound (in the formula (α), Q represents a group having at least one group selected from a methacryloyl group, an attalyloyl group, a butylsilyl group, an epoxy group and an amino group). These chain transfer agents can be used alone or in combination of two or more.

[0059] Among these, when a compound represented by the formula (a): CH = CH Q is used, Q is a polymer.

2

It is preferably introduced at one end, and the terminal Q at the time of post-crosslinking contributes to the cross-linking and can increase the cross-linking density.

[0060] Specific examples of the compound represented by the formula (α): CH = CHQ include vinyl methacrylate,

2

Tallyl acrylate, 1-butene methacrylate, 3-butene-2-methacrylate, styryl methacrylate, pentyl methacrylate, hexyl methacrylate, heptul methacrylate, otatur methacrylate, none methacrylate A compound having a Q force S methacryloyl group, such as dimethyl methacrylate, methacrylic acid undecyl, methacrylic acid undecyl; allylic acrylate, acrylic acid 3 butene 1 yl, acrylic acid 3 butene 2 yl, 1-methyl-3-butene acrylate, styryl acrylate, pentyl acrylate, hexyl acrylate, heptyl acrylate, octyl acrylate, acrylic acid decenyl, decenyl acrylate, undecenyl acrylate, Compounds such as ethylene glycol ditalylate, etc., in which Q is a group having an allyloyl group ;

[0061] Compounds in which Q is a group having a butylsilyl group, such as allyltributylsilane, allylmethyldibutylsilane, allyldimethylvinylsilane; glycidyl acrylate, allyldalisidi Compounds in which Q is a group having an epoxy group, such as ruether; Q, such as allylamine, 2- (ethylamino) ethanol butyl ether, 2 (jetylamino) ethyl acrylate, 4 bur-phosphorus, etc. A certain compound; and the like.

[0062] Of these, formula (j8): CH = CH- Y-OCO-CR 7 = compound represented by CH

twenty two

It is preferable. In the formula (j8), R ⁷ represents a hydrogen atom or a methyl group, and Y represents a divalent hydrocarbon group having 3 to 20 carbon atoms.

[0063] Examples of the divalent hydrocarbon group having 3 to 20 carbon atoms of Y include an alkylene group and a phenylene group. Among them, Y is preferably an alkylene group having 4 to 15 carbon atoms, which is preferably an alkylene group, and more preferably an alkylene group having 4 to 15 carbon atoms from the viewpoint of excellent metathesis reactivity. preferable.

[0064] Preferable examples of the compound represented by the formula (| 8) include, but are not limited to, pentyl methacrylate, hexyl methacrylate, heptul methacrylate, otatur methacrylate, none other methacrylate, and methacrylic acid. Decyl, undecyl methacrylate, pentyl acrylate, hexyl acrylate, heptul acrylate, otatur acrylate, non acrylate acrylate, dec acrylate, undecyl acrylate -Le.

[0065] When a compound represented by the formula (| 8) is used as a chain transfer agent, the compound represented by the formula (j8) has a high metathesis polymerization reactivity, and thus has a narrow molecular weight distribution. It can be easily obtained. Therefore, the fluidity of the resin when heated on the support of the crosslinkable resin becomes uniform, and the embedding property of the resin on the surface of the support immediately improves.

[0066] The addition amount of the chain transfer agent is usually 0 with respect to 100 parts by weight of the cyclic olefin-based monomer.

01 to 10 parts by weight, preferably 0.1 to 5 parts by weight. When the amount of the chain transfer agent added is within this range, a thermoplastic resin having a high polymerization reaction rate and capable of post-crosslinking can be obtained efficiently.

[0067] (4) Crosslinking agent

Examples of the crosslinking agent used in the present invention include a radical generator, an epoxy compound, an isocyanate group-containing compound, a carboxyl group-containing compound, an acid anhydride group-containing compound, an amino group-containing compound, and a Lewis acid. . These crosslinking agents can be used singly or in combination of two or more. Among these, a radical generator or Use of epoxy compound is preferred!

[0068] Examples of the radical generator include organic peroxides and diazo compounds.

Examples of organic peroxides include ketone peroxides such as methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, cyclohexanone peroxide, and methylcyclohexanone peroxide; propioruberoxide, 3, 5, 5-trimethylhexylyl decanol peroxide, lauroyl belloxide, benzylyl peroxide, and other acylyl peroxides; tert butyl hydroperoxide, tamen hydroperoxide Hydroperoxides such as oxide, diisopropylbenzene hydroperoxide, p-menthane hydroperoxide; dialkyl peroxides such as di tert butyl peroxide, tert butyl tamil peroxide, dicumyl peroxide; 1,4 bis (t-butylperoxydiisopropyl) benzene, 1,1bi Pertoxyketals such as tert-butylperoxy- 3,5,5-trimethylcyclohexane, n-butyl-4,4'-bis (tert-butylperoxy) butane; tert-butylperoxyacetate, tert-butylperoxyisobuty Alkyl peresters such as tert-butyl peroxyoctate, 2,5 dimethyl-2,5 dibenzoylperoxyhexane; di-2-ethyl hexylperoxydicarbonate, diisopropylperoxydi Peroxycarbonates such as carbonate; water-soluble peroxides such as succinic acid peroxide; alkylsilyl peroxides such as tert-butyltrimethylsilyl peroxide; and the like.

[0069] Examples of diazo compounds include 4,4 'bisazidobenzal (4-methyl) cyclohexanone, 4,4'-diazidochalcone, 2,6 bis (4'-azidobenzal) cyclohexanone, 2, 6 Bis (4'-azidobenzal) -4-methylcyclohexanone, 4,4'-diazidodiphenylsulfone, 4,4, -diazidodiphenylmethane, 2,2'diazidostilbene and the like. Of these, dialkyl peroxides are preferred because they have few obstacles to the metathesis polymerization reaction.

[0070] Examples of the epoxy compound include phenol novolac type epoxy compounds, cresol novolac type epoxy compounds, talesol type epoxy compounds, bisphenol A type epoxy compounds, bisphenol F type epoxy compounds, brominated bisphenol A type epoxies. Glycidyl ether type epoxy compounds such as bis-phenol, brominated bisphenol F type epoxy compounds, hydrogenated bisphenol A type epoxy compounds; alicyclic epoxy compounds, glycidyl ester type epoxy compounds, glycidyl compounds Examples thereof include compounds having two or more epoxy groups in the molecule, such as a min-type epoxy compound and a polyvalent epoxy compound such as an isocyanurate-type epoxy compound.

[0071] Examples of the isocyanate group-containing compound include compounds having two or more isocyanate groups in the molecule, such as para-phenylene diisocyanate.

[0072] Examples of the carboxyl group-containing compound include compounds having two or more carboxyl groups in the molecule, such as fumaric acid.

[0073] Examples of the acid anhydride group-containing compound include phthalic anhydride and pyroberitic anhydride.

[0074] Examples of the amino group-containing compound include compounds having two or more amino groups in the molecule, such as aliphatic diamines; aliphatic polyamines; aromatic diamines;

[0075] Examples of the Lewis acid include silicon tetrachloride, hydrochloric acid, sulfuric acid, ferric chloride, aluminum chloride, stannic chloride, and tetrasalt-titanium.

[0076] In the present invention, the crosslinking agent to be used can be properly used depending on the crosslinking site of the cyclic olefin fin resin described later. For example, a radical generator can be used in the case of crosslinking at a carbon-carbon double bond portion. In addition, an epoxy compound can be used when crosslinking a crosslinkable resin having a carboxyl group or an acid anhydride group, and an isocyanate group is included when crosslinking a crosslinkable resin having a hydroxyl group. In the case of crosslinking a crosslinkable resin containing an epoxy group, a carboxyl group-containing compound or an acid anhydride group-containing compound can be used. In addition, Lewis acid can also be used as a crosslinking agent when it is desired to crosslink in a thione manner.

[0077] The amount of the crosslinking agent used is not particularly limited, and can be set as appropriate according to the type of the crosslinking agent used. For example, when a radical generator is used as the crosslinking agent, the amount of the crosslinking agent used is usually 0.1 to 10 parts by weight, preferably 0.5 to 5 parts by weight, with respect to 100 parts by weight of the cyclic olefin-based monomer. Part. When an epoxy compound is used as a crosslinking agent, usually 1 to: LOO parts by weight, preferably 100 parts by weight of cyclic olefin-based monomer. 5 to 50 parts by weight.

[0078] In the present invention, in order to improve the effect of the crosslinking agent, a crosslinking aid can be used in combination. Examples of the crosslinking aid to be used include known crosslinking aids, for example, dioxime compounds such as p-quinonedioxime; metatarate toy compounds such as laurylmetatalylate; and diaryl fumarate, diallyl phthalate, and triarylcyanurate. Examples thereof include compounds having the above aryl group; imido compounds such as maleimide;

[0079] The amount of the crosslinking aid used is not particularly limited, but is usually 0 to: LOO parts by weight, preferably 0 to 50 parts by weight with respect to 100 parts by weight of the cyclic olefin-based monomer.

[0080] (5) Radical crosslinking retarder

In the present invention, when a radical generator is used as the crosslinking agent, it is preferable that the polymerizable composition (A) contains a radical crosslinking retarder. The radical crosslinking retarder is generally a compound having a radical scavenging function and has an effect of delaying the radical crosslinking reaction by the radical generator. By adding a radical crosslinking retarder to the polymerizable composition (A), it is possible to improve the fluidity and the storage stability of the thermoplastic resin when the thermoplastic resin is laminated.

[0081] Examples of radical crosslinking retarders used include 4-methoxyphenol, 4-ethoxyphenol, 4-methoxy-2-tert-butylphenol, 4-methoxy-3-tert-butylphenol, 4-methoxy-2,6-di-t —Alkoxyphenols such as butylphenol; hydroquinone, 2-methylhydroquinone, 2,5-dimethylhydroquinone, 2-t-butylhydroquinone, 2,5-dione t-butylhydroquinone, 2,5-dione hydroquinones such as t-amylhydroquinone, 2,5-bis (1,1-dimethylbutyl) hydroquinone, 2,5-bis (1,1,3,3-tetramethylbutyl) hydroquinone; catechol, 4-t —Catechols such as butyl catechol and 3, 5-di-tert-butyl catechol; benzoquinones such as benzoquinone, naphthoquinone and methylbenzoquinone; etc. Is mentioned. Among these, alkoxyphenols, catechols, and benzoquinones are preferable, and alkoxyphenols are particularly preferable.

[0082] The content of the radical crosslinking retarder is usually 0.001 to 1 mol, preferably 0.01 to 1 mol, per 1 mol of the radical generator.

[0083] In addition, the polymerizable composition (A) includes a reinforcing material, a modifier, an antioxidant, a flame retardant, if desired. Other additives such as an agent, a filler, a colorant, and a light stabilizer may be contained.

[0084] Examples of the reinforcing material include glass fiber, glass cloth, paper base material, and glass nonwoven fabric. Each of these additives can be used alone or in combination of two or more.

[0085] Other additives may be added to the polymerizable composition (A) described later for the purpose of improving the physical properties of the film, imparting functions, improving the workability of molding, etc. according to various uses and purposes. it can.

The amount of other additives used is usually 0.001 to 500 parts by weight per 100 parts by weight of the cyclic olefin-based monomer.

[0086] The method for preparing the polymerizable composition (A) is not particularly limited. For example, a cyclic olefin-based monomer (hereinafter sometimes referred to as “monomer liquid”) and a solution (catalyst liquid) in which a metathesis polymerization catalyst is dissolved or dispersed in an appropriate solvent are prepared separately and immediately before the reaction. The method of mixing and preparing is mentioned. In this case, the chain transfer agent, the crosslinking agent, and the radical crosslinking retarder may be added to the monomer solution or may be added to the catalyst solution. Further, these can be added to a mixed solution obtained by mixing the monomer liquid and the catalyst liquid.

[0087] The solvent in which the metathesis polymerization catalyst is dissolved or dispersed is not particularly limited as long as it is inert to the reaction.

For example, aliphatic hydrocarbon solvents such as pentane, hexane, heptane, octane, decane; alicyclic hydrocarbon solvents such as cyclopentane, cyclohexane, methylcyclohexane, decahydronaphthalene, bicycloheptane; Aromatic hydrocarbon solvents such as benzene, toluene and xylene; Nitrogen-containing hydrocarbon solvents such as nitromethane, nitrobenzene and acetonitrile; Ether solvents such as jetyl ether and tetrahydrofuran; , 2-dichloroethane, black-mouthed benzene, dichlorobenzene and other halogenated hydrocarbon solvents; and the like. These can be used singly or in combination of two or more. In addition, a liquid anti-aging agent, a plasticizer, or an elastomer may be used as a solvent as long as it does not decrease the activity as a metathesis polymerization catalyst. [0088] The temperature at which the monomer liquid and the catalyst liquid are mixed is usually 10 to + 40 ° C, preferably one

10 to + 20 ° C, more preferably 0 to + 10 ° C.

In the present invention, it is preferable from the viewpoint of production efficiency and quality stability that the monomer composition and the catalyst solution are continuously mixed to continuously prepare the polymerizable composition (A). Polymerizable composition (

In order to prepare A) continuously, the monomer solution and the catalyst solution are respectively sent to a mixer with a metering pump.

[0090] The metering pump used is not particularly limited as long as it is measurable. Examples include gear pumps, diaphragm pumps, tube pumps, rotary pumps, axial plunger pumps, and cylinder pumps.

[0091] The mixer is not particularly limited, and for example, a static mixer, a dynamic mixer, a collision mixing mixer, or the like can be used. Ordinary stirring devices can also be used as a mixer. Among these, the impact mixing type mixer is preferable in terms of high productivity. When using a collision-mixing mixer, it is preferable to divide the monomer liquid into two parts and collide, and mix the catalyst liquid with the collision energy.

The bulk polymerization method is a method in which the polymerizable composition (A) is prepared and polymerized by heating the composition (A) to a predetermined temperature.

[0093] In the present invention, the temperature of the polymerizable composition (A) before heating is set to -10 to + 20 ° C.

By setting the temperature of the polymerizable composition (A) before heating to −10 to + 20 ° C., it is possible to suppress an increase in molecular weight in the initial stage of polymerization, and as a result, cyclic olefin having a small molecular weight distribution. Coffin can be produced efficiently.

[0094] The method of setting the temperature of the polymerizable composition (A) before heating to -10 to + 20 ° C is not particularly limited. For example, a tank for storing the polymerizable composition (A) is predetermined. How to cool to temperature

A conventionally known liquid cooling method such as a method of cooling a pipe for feeding the prepared polymerizable composition (A) can be employed.

[0095] Next, by heating the polymerizable composition (A) to 50 ° C or higher (peak temperature), the cyclic olefin monomer is subjected to bulk ring-opening metathesis polymerization to obtain a cyclic olefin fin resin. Is possible. [0096] Examples of the method of bulk-opening metathesis polymerization of the polymerizable composition (A) include, for example, (a) a method of bulk polymerization by coating or impregnating the polymerizable composition (A) on a support, and (b) Examples thereof include a method of bulk polymerization of the polymerizable composition (A) in a mold.

[0097] According to the method (a), a film-like cross-linked resin molded article can be obtained.

Examples of the support used include a metal foil, a resin support film, a fiber material, a metal drum, a steel belt, and a fluorine-based resin belt. Among these, in the present invention, it is preferable to use a metal foil, a resin support film or a fiber material.

[0098] Specific examples of the metal foil include copper foil, aluminum foil, nickel foil, chrome foil, gold foil, silver foil and the like, and copper foil is particularly preferable. The copper foil to be used is not particularly limited as long as it is used for a normal copper-clad laminate, and its thickness and roughened state can be appropriately selected according to the purpose of use.

[0099] The surface of the metal foil may be treated with a silane coupling agent, a thiol coupling agent, a titanate coupling agent, various adhesives, or the like.

[0100] Specific examples of the resin support film include polyethylene terephthalate film, polypropylene film, polyethylene film, polycarbonate film, polyethylene naphthalate film, polyarylate film, nylon film, polytetrafluoroethylene film, and the like. Is mentioned.

[0101] The thickness of these metal foil and resin support film is not particularly limited, but from the viewpoint of workability and the like, it is usually 1 to 150 μm, preferably 2 to: LOO μm, more preferably 3 to 75 μm.

[0102] When a fiber material is used as the support, a prepreg obtained by impregnating the fiber material with a crosslinkable resin can be obtained.

The fiber material is not particularly limited, and known organic and Z or inorganic fiber materials can be used. Specific examples of the fiber material include glass fiber, carbon fiber, aramid fiber, polyethylene terephthalate fiber, vinylon fiber, polyester fiber, amide fiber, metal fiber, ceramic fiber and the like. These can be used singly or in combination of two or more. Examples of the shape of the fiber material include mat, cloth, and non-woven fabric. [0103] The polymerizable composition (A) has a lower viscosity than the conventional varnish varnish and is excellent in impregnation with respect to the fiber material. Therefore, the resulting pre-preda has a uniform crosslinkable grease in the fiber material. It is impregnated. Moreover, since this prepredder is obtained by impregnating the polymerizable composition (A) and then heating to a predetermined temperature to perform bulk polymerization, it was impregnated with a resin varnish as in the past. Thereafter, the process of removing the solvent is unnecessary, the productivity is excellent, and problems such as odor and swelling due to the remaining solvent do not occur. Furthermore, since the crosslinkable resin molded product obtained by the production method of the present invention is excellent in storage stability, the resulting pre-preda is also excellent in storage stability.

[0104] The method for applying or impregnating the polymerizable composition (A) to the support is not particularly limited. For example, a known coating method such as a spray coating method, a dip coating method, a roll coating method, a curtain coating method, a die coating method, a slit coating method, or ultrasonic spraying can be used. A smooth film can be obtained. Of these, the die coating method is preferable because the coating amount is highly quantitative and the thickness accuracy can be increased.

The polymerizable composition (A) may be applied only to one side of the support, or may be applied to both sides of the support.

[0105] The coating apparatus is not particularly limited as long as it can coat the polymerizable composition (A) on the support, and a known apparatus can be used. Specifically, a coating device such as an ultrasonic atomizer or a die coater can be used.

[0106] Further, when a fiber material is used as the support, a predetermined amount of the polymerizable composition (A) is applied to the fiber material by the above method, and a protective film is stacked thereon as necessary. You may impregnate by pressing with a roller etc. from the upper side.

[0107] The amount of the polymerizable composition (A) used when applied to the support is not particularly limited, and can be appropriately set according to the thickness of the intended resin film.

[0108] When a fiber material is used as the support, the fiber material is placed in a mold in advance so that the impregnation product may be placed on another support and heated. After impregnating the composition (A), it may be polymerized according to the method of (b) described later! /.

[0109] The method for heating the support coated or impregnated with the polymerizable composition (A) is not particularly limited, but a method using a heating roll, a heating plate or a heating furnace is preferred. these According to the method, it is possible to continuously and efficiently obtain a cyclic olefin fin resin film excellent in smoothness and thickness accuracy by bulk polymerization of the polymerizable composition (A).

[0110] Specifically, the method using a heating roll is as follows. On the surface of the support coated or impregnated with the polymerizable composition (A), a protective film is optionally superimposed on the surface, and the heating roll is applied from above. It is a hot press. By hot pressing with a heating roll, the polymerizable composition (A) is bulk polymerized to obtain a cyclic olefin fin resin.

[0111] The protective film used here is not particularly limited as long as it is a film having a releasability with a cyclic olefin-based resin. Examples thereof include polyethylene terephthalate film, polypropylene film, polyethylene film, polycarbonate film, polyethylene naphthalate film, polyarylate film, nylon film, polytetrafluoroethylene film, and the like.

[0112] Specifically, the method using a heating plate is a method in which a support coated with or impregnated with the polymerizable yarn and the composition (A) is placed on a heating plate after a protective film is overlaid if desired. The polymerized composition (A) is bulk polymerized by heating with a heating plate to obtain a cyclic olefin-based resin. Examples of the protective film to be used include those listed as those that can be used in the method using the heating roll.

[0113] Specifically, the method using a heating furnace is such that the support coated with or impregnated with the polymerizable composition (A) is put in a heating furnace after being overlaid with a protective film, if desired. Is heated in a heating furnace, and the polymerizable composition (A) is bulk polymerized to obtain a cyclic olefin-based resin. Examples of the heating furnace include a hot air heating device that heats using hot air and an infrared heating device that heats using infrared light. Of these, a hot air heating device is preferable because the internal temperature can be easily adjusted. Examples of the protective film to be used include those listed as those that can be used in the method using the heating roll.

[0114] The thickness of the film-like cross-linked resin molded article obtained as described above is usually 1 mm or less, preferably 0.5 mm or less, more preferably 0.2 mm or less.

[0115] According to the polymerization method in the mold (b), a crosslinkable resin molded article having an arbitrary shape can be obtained. The shape is, for example, a sheet (film), a plate, a column, a column, a polygonal column And the like.

[0116] The shape, material, size and the like of the mold are not particularly limited, and a conventionally known mold, for example, a mold having a split mold structure, that is, a core mold and a cavity mold, can be used. The core mold and the cavity mold are manufactured so as to form a void that matches the shape of the target molded product. The polymerizable composition (A) is injected into these voids (cavities) to cause bulk polymerization.

[0117] In the present invention, a plate-shaped mold such as a glass plate or a metal plate and a spacer having a predetermined thickness are prepared, and the spacer is sandwiched between two plate-shaped molds. By injecting the polymerizable composition (A) into the space to be formed, it is possible to obtain a sheet-like (film-like) crosslinkable resin molded article.

[0118] The filling pressure (injection pressure) when filling the polymerizable composition (A) into the mold cavity is usually from 0.01 to: LOMPa, preferably from 0.02 to 5 MPa. If the filling pressure is too low, transfer of the transfer surface formed on the inner peripheral surface of the cavity tends not to be performed well. If the filling pressure is too high, the mold must have high rigidity, which is economical. Absent. The mold clamping pressure is usually in the range of 0.01 to 10 MPa.

[0119] In any of the above methods (a) and (b), the polymerization reaction temperature (peak temperature) is usually 50 ° C or higher, preferably 80 to 200 ° C, more preferably 100 to 150 ° C. It is. The polymerization time may be appropriately selected, but is usually from 10 seconds to 20 minutes, preferably within 5 minutes.

[0120] The polymerization reaction is initiated by heating the polymerizable composition (A) to a predetermined temperature. This polymerization reaction is an exothermic reaction, and once bulk polymerization starts, the temperature of the polymerizable composition rapidly increases and reaches the peak temperature in a short time (for example, about 10 seconds to 5 minutes). If the peak temperature during the polymerization reaction is too high, not only the polymerization reaction but also the cross-linking reaction proceeds, and there is a possibility that a cross-linkable resin cannot be obtained.

[0121] The peak temperature during bulk polymerization is more preferably less than or equal to the one-minute half-life temperature of the crosslinking agent used. Here, the half-life temperature for 1 minute is the temperature at which half of the crosslinking agent decomposes in 1 minute. For example, it is 186 ° C for di-t-butyl peroxide and 194 ° C for 2,5 dimethyl-2,5-bis (tbutinoreperoxy) 3 hexine.

[0122] In order to prevent overheating due to the heat of polymerization reaction, a reaction retarder is added to the polymerizable composition (A). It is also possible to react slowly by adding.

[0123] Examples of the reaction retarding agent to be used include 1,5 hexagen, 2,5 dimethyl-1,5 xagen, (cis, cis) -1,2,6-octagen, (cis, trans) -1,2,6-octa Gen, (trans, trans) 2, 6-octagen and other chain 1,5 gen compounds; (trans) 1, 1, 5, 5 hexatriene, (cis) 1, 3, 5, hexatriene, (trans) 1, 2, 5 Dimethyl— 1, 3, 5 Hexatriene, (cis) — 2, 5 Dimethyl— 1, 3, 5 Hexatriene and other chain 1, 3, 5 Trien compounds; Triphenylphosphine, Tri— phosphines such as n-butylphosphine and methyldiphenylphosphine; Lewis bases such as arlin; and the like.

[0124] Among the cyclic olefin-based monomers described above, the cyclic olefin having a 1,5-gen structure or a 1,3,5-triene structure in the molecule also functions as a reaction retarder. Specific examples include 1,5 cyclooctagen, 1,5 dimethinoleyl 1,5 cyclooctagen, 1, 3, 5 —cycloheptatriene, (cis, trans, trans) 1, 5, 9 cyclo Monocyclic compounds such as dodecatriene, 4-bulucyclohexene, dipentene, etc .; 5-bul 2 norbornene, 5 iso-probe lu 2 norbornene, 5- (1-probe) -2 norbornene, etc. And the like;

[0125] The addition ratio of the reaction retarder is in the range of 0.005% by weight, preferably 0.002% by weight, based on the monomer solution. When the addition ratio of the reaction retarder is less than 0.001% by weight, the reaction retarding effect is not exhibited. On the other hand, if it exceeds 5% by weight, the physical properties may deteriorate due to the reaction retarder remaining in the polymer, or the polymerization reaction may not proceed sufficiently.

[0126] When a ruthenium complex compound having a heteroatom-containing carbene compound as a ligand is used as a metathesis polymerization catalyst, the polymerizable composition (A) is used for 20 ° CZ or more, preferably It is preferable to perform bulk polymerization by heating to 100 ° C or higher at a temperature increase rate of 50 ° CZ or higher.

[0127] This ruthenium complex compound is highly temperature-dependent and has high catalytic activity for the metathesis polymerization reaction. Therefore, a high polymerization reaction rate can be achieved in a very short time by heating the polymerizable composition (A) to 100 ° C. or higher at a high temperature rise rate to perform bulk polymerization. In the case of the method (a) above, if a long support is used, a long crosslinkable resin film with a support can be continuously produced. The obtained crosslinkable resin film with a long support can be wound into a roll, stored and transported.

[0129] That is, a step (I) of preparing a polymerizable composition containing a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent and a crosslinking agent, and a step of applying or impregnating the polymerizable composition on a support ( Ii) and the step (III) of carrying out bulk ring-opening metathesis polymerization by heating the polymerizable composition to a predetermined temperature, thereby producing a crosslinkable resin molded product with high productivity. be able to.

[0130] This method can be carried out using, for example, the continuous molding apparatus shown in FIG.

In the continuous molding apparatus shown in FIG. 1, (11) is a monomer liquid tank for storing a monomer liquid containing a cyclic olefin-based monomer, and (12) is a catalyst liquid tank for storing a catalyst liquid containing a metathesis polymerization catalyst. Each tank is pre-cooled so that the temperature of the polymerizable composition (A) before heating is 10 to + 20 ° C.

[0131] The monomer liquid tank (11) and the catalyst liquid tank (12) are connected to small tube pumps (13) and (14), respectively, and the monomer liquid and the catalyst liquid are connected to the small static mixer (15 ) At a predetermined flow rate, and both are mixed to prepare the polymerizable composition (A). Then, the prepared polymerizable composition (A) is fed to the coating parts (16a) and (16b).

[0132] On the other hand, the support feeding part (17) force The long support (18) is fed at a predetermined speed, and the coating unit (16a), (16b) is used to apply this support. The polymerizable composition (A) is continuously applied on both sides.

[0133] Next, a long protective film (20) is sent out from the protective film delivery sections (19a) and (19b), overlapped with the coated surface (both sides) of the support, and a pair of gaps adjusted to be constant. Adjust the thickness of the coating film to the specified thickness through the metal holes (21a) and (21b).

Next, this is continuously fed into a hot air warming device (23) in which the inside is kept at a predetermined temperature uniformly by air curtains (22) provided at the inlet and the outlet, respectively. The polymerizable composition (A) is heated to a predetermined temperature with a hot-air calorie temperature device (23) and subjected to bulk polymerization to obtain a crosslinkable resin sheet (24) with a double-sided protective film.

The crosslinkable resin sheet (24) obtained as described above is film-wrapped together with the protective film. It can be taken up by the take-up part (25), stored and transported.

[0135] In the present invention, as a method of heating the support coated or impregnated with the polymerizable composition (A), the temperature difference between the internal maximum temperature and the minimum temperature is within 10 ° C. A method of heating the polymerizable composition (A) to a peak temperature of 50 ° C. or higher, preferably 80 to 200 ° C., more preferably 100 to 150 ° C. in a certain hot air heating apparatus is more preferable.

According to this method, the chain transfer in the bulk ring-opening metathesis polymerization becomes smooth, and a cyclic olefin fin resin having a smaller molecular weight distribution can be obtained.

[0136] The method of setting the temperature difference between the maximum temperature and the minimum temperature in the hot air heating apparatus to be within 10 ° C is not particularly limited. For example, a long support is used as described above. While the long support coated or impregnated with the polymerizable composition (A) is conveyed in a constant direction at a constant speed in the hot air heating device, the polymerizable composition (A) of the long support In the case of heating a support coated or impregnated with air, there is a method of partitioning the transport port and the transport port of the hot air heating device with a single air force.

[0137] The crosslinkable resin molded product obtained as described above undergoes almost complete bulk polymerization! Therefore, there is little residual monomer. That is, since the polymerization reaction rate is high, the working environment is not deteriorated by the odor derived from the monomer, and bulk polymerization (metathesis ring-opening polymerization) does not proceed during storage, so that storage stability is improved. Excellent.

[0138] The polymerization reaction rate of the cyclic olefin resin contained in the crosslinkable resin molded product obtained by the production method of the present invention is usually 80% or more, preferably 90% or more, more preferably 95% or more.

The polymerization reaction rate of cyclic olefin fin resin can be determined, for example, by analyzing a solution obtained by dissolving cyclic olefin fin resin in toluene by a known analysis means such as gas chromatography.

[0139] The cyclic olefin fin resin obtained by bulk polymerization is composed of aromatic hydrocarbons such as benzene and toluene; ethers such as jetyl ether and tetrahydrofuran; halogenated hydrocarbons such as dichloromethane and chloroform; By dissolving in a solvent, it can be confirmed that this resin is an uncrosslinked thermoplastic resin.

[0140] By the production method of the present invention, a crosslinkable resin containing a cyclic olefin fin resin and a crosslinking agent. A molded body can be obtained. Since the crosslinkable resin molded product obtained by the production method of the present invention is excellent in fluidity, the substrate and the crosslinked resin are firmly bonded to each other by laminating it with a substrate, heating and melting and crosslinking. In addition, a crosslinked resin molded article having good adhesion can be obtained.

[0141] The weight-average molecular weight (Mw) of the cyclic olefin fin resin contained in the crosslinked resin molded article obtained by the production method of the present invention is not particularly limited, but is measured by gel 'permeation' chromatography (polystyrene). Conversion), usually 10,000 to 50,000, preferably 15,000 to 30,000, more preferred <is 15,000 to 25,000, more preferred <is 17,000 to 25,000, Especially preferred <is between 18,000 and 22,000.

[0142] A crosslinkable resin molded article containing a cyclic olefin fin resin having a weight-average molecular weight in such a range has fluidity when heated and flowed, and strength of the crosslinked resin molded article obtained by crosslinking the resin composition. Excellent balance. According to the present invention, a crosslinkable resin molded product containing a cyclic olefin resin having a weight average molecular weight in such a range can be obtained efficiently.

[0143] The molecular weight distribution (Mw / Mn) of the cyclic olefin fin resin is not particularly limited !, but is usually 4.4 or less, preferably 4.0 or less, more preferably 3.5 or less, and more Preferably it is 3.1 or less, particularly preferably 2.3 or less. A crosslinkable resin molded product containing a cyclic polyolefin resin having a molecular weight distribution in such a range is excellent in fluidity when heated and flowing. According to the present invention, a crosslinkable resin molded product containing a cyclic olefin fin resin having a molecular weight distribution in such a range can be obtained efficiently.

[0144] The shape of the crosslinkable resin molded product obtained by the production method of the present invention is not particularly limited, and examples thereof include any shape such as a sheet shape (film shape), a columnar shape, a cylindrical shape, and a polygonal columnar shape. Among these, when the crosslinkable resin molded product obtained by the production method of the present invention is used for a pre-predder or a circuit board, it is a sheet (film) or is impregnated with a fiber material. Particularly preferred is a sheet (film) having a preferred thickness of 0.2 mm or less.

[0145] By crosslinking the crosslinkable resin molded product obtained by the production method of the present invention, A fat molded body can be obtained. Specifically, the obtained crosslinkable resin molded article can be obtained by heating and melting, and further continuing the heating to advance the crosslinking reaction.

[0146] The temperature at which the crosslinkable resin molded product is heated and melted and crosslinked is usually 150 to 250 ° C, preferably 170 to 250 ° C, more preferably 180 to 220 ° C. Further, it is preferable that the temperature is 10 minutes or more of the radical crosslinking agent. Here, the 10 minute half-life temperature is the temperature at which half of the radical crosslinker decomposes in 10 minutes. For example, it is 162 ° C for di-t-butyl peroxide and 170 ° C for 2,5 dimethyl-2,5 bis (t-butylperoxy) 3 hexine. The time for heating and melting / crosslinking is not particularly limited, but is usually several minutes and several hours.

[0147] The method for heat-melting and crosslinking the crosslinkable resin molded product is not particularly limited.

Crosslinkable resin molded body strength When the film is in the form of an S film, a method of laminating the film with a base material as necessary and hot pressing is preferable. The pressure during hot pressing is usually 0.5 to 20 MPa, preferably 1 to L0MPa, more preferably 2 to L0MPa, and particularly preferably 3 to LOMPa. The hot pressing can be performed using, for example, a known press machine having a press frame mold for flat plate molding, a press molding machine such as a sheet mold compound (SMC) or a Balta mold compound (BMC). These methods are preferable because they are excellent in productivity.

[0148] When a resin support film is used as the support, the resin support film may be peeled off and laminated with the substrate. Examples of the substrate used here include a metal foil, a conductive polymer film, other thermoplastic resin films, and a substrate.

[0149] As the base material, a metal foil or a metal-clad laminate for an outer layer and a metal-clad laminate for an inner layer are used, and these are sequentially stacked between stainless steel plates, and pressurized and heated. It is possible to produce a crosslinked resin-clad laminate and a wiring board by crosslinking.

[0150] When a metal foil is used as the support, a crosslinked resin-clad metal-clad laminate can be obtained by crosslinking the thermoplastic resin part of the obtained metal foil with resin.

[0151] Also, a multilayer printed wiring board is obtained by laminating a film-like crosslinkable resin molded article obtained by the production method of the present invention with a printed wiring board and crosslinking a cyclic olefin fin resin part. Can be obtained.

[0152] The printed wiring board to be used is not particularly limited as long as it is a normal inner layer printed wiring board, and a known one can be used. According to the present invention, it is possible to efficiently produce a multilayer printed wiring board in which a cyclic olefin-based cross-linking resin excellent in electrical insulation and mechanical strength is in good contact with an inner layer printed wiring board and is firmly bonded.

Example

[0153] Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. However, the present invention is not limited to the following examples. In the following Examples and Comparative Examples, “parts” and “%” are based on weight unless otherwise specified.

[0154] The number average molecular weight (Mn), the weight average molecular weight (Mw), and the molecular weight distribution (Mw / Mn) were measured by gel 'permeation' chromatography using tetrahydrofuran as a developing solvent. It was calculated in terms of molecular weight.

[0155] (Example 1)

1,4-Methanol 1,4,4a, 9a-tetrahydrofluorene 40 parts as an aromatic ring-containing cyclic olefin, 15 parts norbornene 15 and tetracyclododecene 45 parts as another cyclic olefin, methacrylic acid as a chain transfer agent A monomer solution was obtained by mixing 2.74 parts of allyl and 1.14 parts of tert-butyl peroxide (1 minute half-life temperature 186 ° C) as a crosslinking agent.

[0156] Separately, 51 parts of benzylidene (1,3 dimesitylimidazolidine-2-ylidene) (tricyclohexylphosphine) ruthenium dichloride and 79 parts of tributylphosphine were dissolved in 952 parts of tetrahydrofuran. A catalyst solution was prepared.

[0157] The monomer liquid and the catalyst liquid obtained above were placed in the monomer liquid tank (11) and the catalyst liquid tank (12) of the continuous molding apparatus shown in Fig. 1, and each tank was cooled to 10 ° C. Small tube pumps (13) and (14) are connected to the monomer liquid tank (11) and catalyst liquid tank (12), respectively. Small static mixers 15 (spiral type, element length with flow rates of 15 mlZ and 0.1 mlZ respectively. 3. The mixture was sent to 18 mm and the number of elements 24) and mixed, and the resulting polymerizable composition having a temperature of 10 ° C. was fed to the coating parts (16a) and (16b).

[0158] On the other hand, a glass cloth (18) (2112Z630ZAS891AW: manufactured by Asahi Schavel Co., Ltd.), which is continuous in a strip shape with a thickness of m and a width of 630 mm, is supplied from the support feed part (17) for 50 mm Using a double-sided die coater at the coating part (16a), (16b), the above polymerizable composition is continuously applied to this glass cloth so that the thickness after coating is 110 / zm. And impregnated into a glass cloth.

[0159] Next, a polyethylene naphthalate film (20) continuous in a strip shape having a thickness of 25 / ζ πι and a width of 500 mm (20) (Q51: manufactured by Teijin DuPont Films Japan) The film thickness was set to 100 m through a pair of metal rolls (21a) and (21b) with a gap adjusted to 150 m.

[0160] This was continuously applied to a hot air heating device (23) with a length of 3,000 mm, the inside of which was uniformly maintained at 150 ± 5 ° C by air curtains (22) provided at the inlet and outlet respectively. sent. The polymerizable composition was heated to 150 ° C. for 20 seconds with a hot air warming device (23) and bulk polymerized to obtain a resin sheet (24) with a protective film. The obtained resin sheet (24) was wound up together with the protective film at the film winding section (25). The weight average molecular weight of the resin of the resin sheet (24) was 20,000, and the molecular weight distribution was 3.1.

[0161] The obtained grease sheet (24) force Protective film was peeled off, and this was cut into a 100mm x 100mm square, and on one side, 12 / zm thick electrolytic copper foil (F00-WS: Furukawa Circuit Oil Co., Ltd.) And then a resist was applied. On top of this, the shape was developed by exposing the electrolytic copper foil through the pattern of the IPC multipurpose substrate having the shape shown in FIG. Thereafter, an etching process was performed, and the copper foil other than the developed part was removed with a stripping solution.

[0162] Further, a resin sheet (24) was stacked thereon and hot-pressed to obtain Sample 1 having a plate thickness of 200 µm. The hot press conditions were a press temperature of 200 ° C x 15 minutes and a press pressure of 3 MPa. (Examples 2 to 4)

In Example 1, the temperature of the continuous molding apparatus tank shown in FIG. 1 (temperature of the polymerizable composition before heating) 10 ° C and the bulk polymerization temperature 150 ° C were changed to the temperatures shown in Table 1. In the same manner as in Example 1, the resin sheet and Samples 2 to 4 of Examples 2 to 4 were obtained.

[0163] (Examples 5 and 6)

Other than using 2.74 parts of methacrylic acid hexane as chain transfer agent, 1.70 parts of hexane methacrylate (Example 5), undecyl methacrylate (Example 6) 3.00 parts Were the same as in Example 1 to obtain a resin sheet and its samples 5 and 6. [0164] (Comparative Examples 1 and 2)

In Example 1, the temperature of the continuous molding apparatus tank shown in FIG. 1 (temperature of the polymerizable composition before heating) 10 ° C and the bulk polymerization temperature 150 ° C were changed to the temperatures shown in Table 1. In the same manner as in Example 1, the resin sheet and Samples 7 and 8 of Comparative Examples 1 and 2 were obtained.

[0165] The chain transfer agent used in Examples 1 to 6 and Comparative Examples 1 and 2, the temperature of the polymerizable composition before heating, the polymerization temperature, and the weight-average molecular weight of the obtained cyclic olefin fin resin Table 1 summarizes the molecular weight distribution.

[0166] The obtained samples were evaluated for flatness and embeddability.

Flatness and embedding were evaluated by cutting each sample in the direction A–B shown in Fig. 2 and visually observing the cross section.

As shown in Fig. 3, the evaluation of flatness and embedding is performed on three items: the presence or absence of shading, the presence or absence of dents, and the evaluation of flatness, and the evaluation results are as follows: A, B, C, and NG Expressed in

[0167] (With or without blur)

A: When there is no blur

B: When there is a blur but the blur is smaller than lmm square

C: Scratch is a force When the size of the scrap is l to 3 mm square

NG: When there is blur and the size of the blur is larger than 3mm square

(With or without dent)

A: When there is no dent

B: If there is a dent but the size of the dent is smaller than lmm square

C: When there is a dent but the size of the dent is 1 to 3 mm square

NG: When there is a dent and the size of the dent is larger than 3 mm square

(Evaluation of flatness)

A: If no trace of wiring is recognized

B: When wiring traces are thin

C: When traces of wiring are recognized

NG: When irregularities are observed on the surface

The evaluation results are shown in Table 1. In the column of “IPC board evaluation result” in Table 1, the presence or absence of blurring, The results of comprehensive evaluation based on the criteria of the items with the lowest evaluation of the presence or absence of dents and flatness are shown.

[table 1]

From Table 1, in Examples 1 to 6 where the temperature of the polymerizable composition before heating was −10 to + 20 ° C., the molecular weight distribution of the obtained cyclic olefin fin resin was 1.9 to 4.3. It was a small one. On the other hand, in Comparative Examples 1 and 2 in which the temperature of the polymerizable composition before heating was 25 ° C., the molecular weight distribution of the obtained cyclic olefin resin was as large as 4.6 to 4.9.

Also, from the evaluation results of flatness and embeddability using an IPC substrate, it can be seen that the smaller the molecular weight distribution, the better the flatness and embeddability. In particular, the crosslinkable resin molded product having a molecular weight distribution of 3.5 or less had excellent flatness and embedding properties (Examples 1, 5, and 6).

Claims

The scope of the claims

[1] A polymerizable composition containing a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent and a crosslinking agent is subjected to bulk ring-opening metathesis polymerization by heating to 50 ° C. or higher to form a crosslinked resin composition. A method for producing a crosslinkable resinous molded product, characterized in that the temperature of the polymerizable composition before heating is 10 ° C to + 20 ° C.

[2] The production method according to claim 1, wherein the polymerizable composition is heated to 80 ° C. to 200 ° C. to perform bulk ring-opening metathesis polymerization.

[3] The method according to claim 1 or 2, wherein the heating is performed using a heating roll, a heating plate, or a heating furnace.

[4] The production method according to claim 1 or 2, wherein the heating is performed using a hot air heating device in which a temperature difference between an internal maximum temperature and a minimum temperature is within 10 ° C.

[5] A step of preparing a polymerizable composition by mixing a cyclic olefin-based monomer, a metathesis polymerization catalyst, a chain transfer agent and a crosslinking agent (I), and a step of applying or impregnating the polymerizable composition on a support (11 ), And a method of producing a crosslinkable resin molded article having a step (III) of performing bulk ring-opening metathesis polymerization by heating the polymerizable composition to 50 ° C. or more, wherein the polymerizable property before heating is A method for producing a crosslinkable resin molded product, wherein the temperature of the composition is -10 ° C to + 20 ° C.

[6] The present invention is characterized in that a long support is used as the support, and the steps (I) to (III) are continuously performed while the support is transported in a certain direction. The manufacturing method as described in.

7. The production method according to claim 5 or 6, wherein a resin film, a fiber material, or a metal foil is used as the support.

[8] The method according to any one of claims 5 to 7, wherein the step (III) is performed using a hot air heating device in which a temperature difference between the internal maximum temperature and the minimum temperature is within 10 ° C. The manufacturing method as described.

[9] The production method according to any one of claims 1 to 8, wherein a cyclic olefin-based monomer containing an aromatic ring is used as the cyclic olefin-based monomer.

10. The production method according to claim 1, wherein a ruthenium complex catalyst having a heteroatom-containing carbene compound as a ligand is used as the metathesis polymerization catalyst.